Improvement in pipe-coupling



anca safe aient Gefllte.

JOHN vivAN JEPsON, or BROOKLYN, NEW YORK.

Letters Patent No. 98,597, dated January 4, 1870 antedated December 24, 1869.

IMPROVEMENT IN PIPE-COUPLING.

The` Schedule referred to in these Letters Patent and making part of the same.

To all whom itv may conce/rn:

Be it known that I, JOHN V1vrAN.InPsoN,oi'Brook lyn, in the county of'Kings, and State .of New York, have invented a new and improved Pipe-Coupling; and

. l do hereby declare that the following is a full, clear,

a'nd exact description of the same, reference beingV had I to the accompanying drawings, forming a. part of this pipe, Owing to the diticulty of making a perfect soldered joint without impairing the lining.

The invention consists in the construction of a pipecoupling, having an interposed loose washer of hard metal, with annular grooves or corrugations on its faces, tot he placed between the flanged extremities of thesoft-metal pipe, and within the male and female screws of an universal coupling, whereby simplicity, efciency, and cheapness are combined.

A A is a male and female socket,'f1ttcd together by a screw-thread.

B B are the sections of pipe to he joined or coupled.

b b are flanges provided upon the inner ends ofthe sections of pipe B B, and which engage, by means of their opter or near surfaces, with shoulders c aof the socketA A.

C is aV loose washer, interposed between thefianges b b of the pipes B B, forthe establishment'of a close joint thereat.

Said washer G is provided with a central opening or hole, c, the size of the calibre ofthe pipe, and also with annular corrugations upon its sides, for the more perfect engagement 'thereof with the flanges b l).

This washer being entirely separatefrom the socket A A', is not required to rotate during the screwing together of ,the male and female socket, but by said screwing up or tightening of the parts, the flanges b b are pressed against the sides of the said washer C, with sucient force to imbed its annular corrugations into their surfaces by straight compression without any rotatingor cutting motion, thereby effecting a perfect joint without removal of the tin surface, when f used for the coupling of tin-lined lead pipe.

In the operation of this invention, the socket A A is unscrewed, and the washer C removed', and one of theparts of the socket is placed over the end of each section of pipe to be coupled, in such manner th'at their threaded surfaces will be in position for engagement with cach other. v The flanges b b are then formed upon the endsof the pipes. rlhis may be done by any suitable apparatus for the purpose, after which the sections of the socket are caused to slide along the pipe until the shoulders an. rest against the back surfaces of the flanges b 11.

The washer() is then inserted into the female socket A', so that one of its corrugated sides will rest against the face of the flange contained within the said socket. This being done, the sections A- A' are united and screwed together until sufficiently tight to establish a perfect joint.

This pipe-coupling, as also its interposed washer O,

may be of any desirable length, and the said washer may have a side opening, of sutiicientsize and suitably threaded for reception ota branch pipe, in which case a corresponding opening is also made through the socket, for the passage of the branch pipe to the washer.

vsoft-metal pipes, Vin the manner vsubstantially as set Y forth. y

JOHN VIVIAN J EPSON. Witnesses: l 1 -i j FnEDQHnYNEs, HENRY PALMER. 

